/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.amber.type;
import com.caucho.amber.manager.AmberPersistenceUnit;
import com.caucho.java.JavaWriter;
import com.caucho.util.L10N;
import java.io.IOException;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
/**
* The primitive char type.
*/
public class PrimitiveCharType extends PrimitiveType {
private static final L10N L = new L10N(PrimitiveCharType.class);
private static final PrimitiveCharType CHAR_TYPE = new PrimitiveCharType();
private PrimitiveCharType()
{
}
/**
* Returns the boolean type.
*/
public static PrimitiveCharType create()
{
return CHAR_TYPE;
}
/**
* Returns the type name.
*/
public String getName()
{
return "char";
}
/**
* Returns the type as a foreign key.
*/
public AmberType getForeignType()
{
return CharacterType.create();
}
/**
* Generates the type for the table.
*/
public String generateCreateColumnSQL(AmberPersistenceUnit manager, int length, int precision, int scale)
{
return manager.getCreateColumnSQL(Types.CHAR, 0, precision, scale);
}
/**
* Generates a string to load the property.
*/
public int generateLoad(JavaWriter out, String rs,
String indexVar, int index)
throws IOException
{
out.print("com.caucho.amber.type.PrimitiveCharType.toChar(" + rs + ".getString(" + indexVar + " + " + index + "))");
return index + 1;
}
/**
* Generates a string to load the property.
*/
public int generateLoadNative(JavaWriter out, int index)
throws IOException
{
out.print("com.caucho.amber.type.PrimitiveCharType.toChar(columnNames[" + index + "])");
return index + 1;
}
/**
* Generates a string to set the property.
*/
public void generateSet(JavaWriter out, String pstmt,
String index, String value)
throws IOException
{
out.println(pstmt + ".setString(" + index + "++, String.valueOf(" + value + "));");
}
/**
* Generates a string to set the property.
*/
public void generateSetNull(JavaWriter out, String pstmt, String index)
throws IOException
{
out.println(pstmt + ".setNull(" + index + "++, java.sql.Types.CHAR);");
}
/**
* Converts to an object.
*/
public String toObject(String value)
{
return "new Character(" + value + ")";
}
/**
* Converts the value.
*/
public String generateCastFromObject(String value)
{
return "((Character) " + value + ").charValue()";
}
/**
* Gets the value.
*/
public Object getObject(ResultSet rs, int index)
throws SQLException
{
String v = rs.getString(index);
return rs.wasNull() ? null : new Character(v.charAt(0));
}
/**
* Converts a value to a char.
*/
public static char toChar(String value)
{
if (value == null || value.length() == 0)
return 0;
else
return value.charAt(0);
}
/**
* Sets the value.
*/
public void setParameter(PreparedStatement pstmt, int index, Object value)
throws SQLException
{
if ((value instanceof Character) || (value instanceof String))
pstmt.setString(index, value.toString());
else
throw new IllegalArgumentException("Invalid argument for setParameter.");
}
}